Sr.
abbr. (=Senior)(=Sir)；〈外(=Senhor)\\n
🗣️ 情景例句
Sorry, I'm afraid I'm busy tonight.
对不起， 今晚我恐怕没空。
Knowledge advances by steps not by leaps.
知识的获得是循序渐进而不是突飞猛进的。
A little. I go to Chinese classes every week.
一点点，我每周去汉语班上课。